Extra lines with thick infill

[touwen75 0]

Hello,

 

I am trying to speed up my prints while keeping the same print quality, by selecting a thicker infill.

So my layer height for the walls is 0.1 and my layer height for the infill is 0.2mm.

But on the layers where there is no infill, I get these short infill lines, as shown in the pictures.

 

So what are these lines, and is there a setting to get rid of them?

 

I have already tried setting the top and bottom layers to zero, 

deselecting fill gaps between walls ( in cura 4.13)

 

I hope someone can point me in the right direction...

 

 

 

 

 

[MariMakes 201]

Hey @touwen75,

 

What an interesting case. 🤔

What are you using your model for?
Have you considered using lightning infilll, it speeds up the printtime a lot!

Do you have a project file for us? It contains the printer and settings we need for troubleshooting. 
To save a project file go to File -> Save project.

[touwen75 0]

Hi MariMakes,

 

Thank you for your quick reply.

I have attached the project file of my coupling ring.

 

when I was playing around with it some some I have noticed that the lines get longer if I would increat the infill layer thickness, and it only seems to support the top layers... maybe it is just a feature.

 

But if I select concentric infill, only the walls are printed... 

 

 

coupling ring thick infill.3mf

[MariMakes 201]

Hey @touwen75,

 

Thanks for sharing your model👍
Wow, you changed a lot of settings, I had to doublecheck but you need it for SLS printing! 
That's so cool! I'm not sure how I can help since you are deviating so much from the default settings.  

I believe what you are seeing is related to Connect Infill Lines. I'm seeing some improvements if you enable the setting and if you let Cura decide what the infill direction is. I also like the concentric infill suggestion!

Maybe there is someone else who has a better idea what to change.

[GregValiant 1,330]

Hello to both of you.

Try enabling "Connect Infill Lines".  It will get better but I couldn't get them to go away.  They appear to be appended to the ends of all the infill lines.  

[touwen75 0]

Indeed my Allshape base1 is a benchtop SLS printer, but Cura does not know that...🤫 😉

 

Anyhow, I have tried both your suggestions, and a lot of other settings, but the lines never go away...

I guess I am just have to live with it.

 

Thank you!